Naslov
Conductometric Study of Cesium Bromide in Aqueous Butan-2-ol of Lower Mass Fraction

Autori
Prkić, Ante ; Sokol, Vesna ; Bošković, Perica

Izvornik
International journal of electrochemical science (1452-3981) 8 (2013), 4; 4886-4900

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
cesium bromide; butan-2-ol + water mixtures; association to ion-pairs; thermodynamic quantities

Sažetak
Molar conductivities of dilute solutions of cesium bromide in binary mixtures of butan-2-ol and water were measured in the temperature range from 288.15 to 308.15 K at 5 K intervals. The limiting molar conductivity (Λ o ) and the ion-pair formation constant (K A ) were determined by the Lee-Wheaton conductivity equation. Thermodynamic quantities, Gibbs energy (ΔG°), enthalpy (ΔH°) and entropy (ΔS°), for the ion-association reaction were derived from the temperature dependence of KA. The activation enthalpy of the charge transport (ΔH ‡ ) was derived from the temperature dependence of Λo. The obtained thermodynamic quantities, together with Walden product, were discussed in terms of solvent basicity, structure permittivity and viscosity.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA